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Ships within 48 hours · Estimated delivery Aug 29 - Sep 3
The TR/OBR reed case has a replaceable fan cover mount incase you ever crack or break it
you may send your engine/top end in to us to be upgraded to a full mod or a full mod long rod
</span></p> <p>We recommend any displacement Zenoah 4 bolt top end to match this case
This pipe was exclusively designed and dyno tuned around our engines and there is not a better performing pipe out there for an OBR engine
6274 - 7.5hp CNC Ported Full Mod Zenoah 30.5cc 4 Bolt Engine The TR/OBR reed case hasThis engine now comes with a TR OBR billet crankcase at no extra cost. Every long block or engine is now CNC ported and hand finished. CNC porting and hand finishing is all done in house by the OBR staff. We do not contract out any of our porting so every engine is modified to our exact specifications. We are able to offer higher accuracy this way as well as more power. Our CNC machine has allowed us to take our porting to the next level due to us
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